{
  "annotation_id": "ad3ae633-743a-445a-b19c-77afb99fd16a",
  "date_created": "2026-02-17T05:53:11.753000Z",
  "date_modified": "2026-02-17T05:53:11.753000Z",
  "file_hash": "f2f2c6fcde4b0dd75365efbbdcd92d6b6030cd8f6ef8f003848231f352dc01ef",
  "private": false,
  "record": {
    "abstract": "Scanning diamond nitrogen-vacancy probe microscopy (SNVM) is an important tool for studying nanoscale condensed-matter phenomena. Ga$^+$-ion-focused-ion-beam (FIB) milling has been introduced as an available method for fabricating SNVM, while the probe diameter is limited to a few micrometers due to the Ga$^+$-induced damage. We report a method for improving the SNVM probes\u0027 quality, with an 800-nm diameter probe of ultrapure diamond, through polyvinyl alcohol and Pt/Pd capping, followed by UV/ozone exposure. The effectiveness of the method is confirmed by NVs\u0027 spin-coherence property measurements and magnetic domain structure imaging with a few-hundred-nanometer resolution and a 6.7 $\\mu$T/Hz$^{1/2}$ sensitivity.",
    "arxiv_id": "2601.07188",
    "authors": [
      "Dwi Prananto",
      "Yifei Wang",
      "Yuta Kainuma",
      "Kunitaka Hayashi",
      "Masahiko Tomitori",
      "Toshu An"
    ],
    "categories": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Improvement of a focused ion beam fabricated diamond pillar for scanning ensemble nitrogen-vacancy magnetometry probe using an ultrapure diamond",
    "url": "https://arxiv.org/abs/2601.07188",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "927d0cda-18bd-4ffd-b742-cb80c82e976b",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}